////////////////////////////////////////////////////////////////////////////////////////////////////
// Copyright (c) 2009, Daniel Kollmann
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification, are permitted
// provided that the following conditions are met:
//
// - Redistributions of source code must retain the above copyright notice, this list of conditions
//   and the following disclaimer.
//
// - Redistributions in binary form must reproduce the above copyright notice, this list of
//   conditions and the following disclaimer in the documentation and/or other materials provided
//   with the distribution.
//
// - Neither the name of Daniel Kollmann nor the names of its contributors may be used to endorse
//   or promote products derived from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
// FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
// WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
////////////////////////////////////////////////////////////////////////////////////////////////////

/////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// The above software in this distribution may have been modified by THL A29 Limited ("Tencent Modifications").
//
// All Tencent Modifications are Copyright (C) 2015 THL A29 Limited.
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////

using System;
using System.Collections.Generic;
using System.Text;
using System.Drawing;
using Behaviac.Design.Attributes;

namespace Behaviac.Design.Nodes
{
    /// <summary>
    /// This node represents an impulse which can be attached to the behaviour tree.
    /// </summary>
    public class Impulse : Node
    {
        protected Connector _genericChildren;
        public Connector GenericChildren
        {
            get { return _genericChildren; }
        }

        protected bool _acceptsEvents;
        public Impulse(string label, string description)
            : base(label, description)
        {
            _acceptsEvents = true;

            _genericChildren = new ConnectorSingle(_children, string.Empty, "GenericChildren");
        }

        public override bool AcceptsAttachment(Type type)
        {
            if (_acceptsEvents)
            {
                return type.IsSubclassOf(typeof(Behaviac.Design.Attachments.Predicate));
            }

            return false;
        }

        private readonly static Brush __defaultBackgroundBrush = new SolidBrush(Color.FromArgb(96, 74, 123));
        protected override Brush DefaultBackgroundBrush
        {
            get { return __defaultBackgroundBrush; }
        }

        protected override void CloneProperties(Node newnode)
        {
            base.CloneProperties(newnode);
        }
    }
}
